This information is relative only to the measurement of non-adjustable rings.

1st Step: Measure the inside diameter of a ring that you usually wear

Example: 1.6 cm = 1.6 mm → size 16

Note that the inside diameter corresponds to the inside measurement of the ring.

2nd Step: Using the information below, determine your size:

Measurement (in millimeters)	Size
15 mm	15
16 mm	16
17 mm	17
18 mm	18
19 mm	19
20 mm	20
21 mm	21
22 mm	22